TW202034720A - Communication apparatus and power saving method thereof - Google Patents

Abstract

Various solutions for power saving for New Radio (NR) carrier aggregation in mobile communications are described. An apparatus receives, from a wireless network, a trigger signal. The apparatus switches between a first bandwidth part (BWP) and a second BWP of at least two BWPs for a secondary cell (SCell) in response to receiving the trigger signal. No physical downlink control channel (PDCCH) monitoring is configured for the first BWP while PDCCH monitoring is configured for the second BWP.

Description

Power-saving new radio carrier aggregation

The present invention generally relates to mobile communications, and more specifically, to the power saving of New Radio (NR) carrier aggregation used in mobile communications.

Unless otherwise indicated here, the methods described in this section are not known technologies for the scope of the patent applications listed herein, and the methods included in this section are not recognized as known technologies.

In New Radio (NR), user equipment (UE) is usually in wake-up mode, power-saving or low-power mode. For example, in the wake-up mode, the UE usually monitors control information, receives downlink (DL) data and sends uplink (UL) data. The UE may consume a large part of the total power consumption when monitoring the physical downlink control channel (PDCCH). Since the UE is usually mobile and therefore runs on a portable power source (for example, a battery), the UE must minimize power consumption in order to extend the time that the portable power source of the UE maintains the operation of the UE.

The following summary of the invention is only illustrative, and is not intended to be limiting in any way. That is, the following overview is provided to introduce the concepts, highlights, benefits, and advantages of the novel and non-obvious technologies described herein. The selected implementation is further described in the detailed description below. Therefore, the following summary is neither intended to identify the necessary features of the claimed subject matter, nor is it intended to be used to determine the scope of the claimed subject matter.

The purpose of the present invention is to propose a solution or solution which solves the aforementioned problems related to power saving of NR carrier aggregation in mobile communications.

In one aspect, a method may include a device that receives a trigger signal from a wireless network before data scheduling. The method may further include in response to receiving the trigger signal, the apparatus switching between a first bandwidth part (BWP) and a second BWP of the at least two BWPs used in the secondary cell (secondary cell). PDCCH monitoring may not be configured for the first BWP, but PDCCH monitoring may be configured for the second BWP.

In another aspect, a method may include a device that receives higher-layer signaling from a wireless network, and the high-layer signaling configures at least two BWPs for an SCell (secondary cell), of which at least two The first BWP in the two BWPs is a specific BWP, and the specific BWP is not configured with PDCCH monitoring. The method may further include means for switching between the first BWP and the second BWP of the at least two BWPs used for the SCell.

In yet another aspect, an apparatus may include a transceiver and a processor coupled to the transceiver. The transceiver can be configured to communicate wirelessly with a wireless network. The processor can receive the trigger signal from the wireless network through the transceiver before data scheduling. The processor may also switch between the first BWP and the second BWP of the at least two BWPs of the secondary cell via the transceiver in response to receiving the trigger signal. PDCCH monitoring may not be configured for the first BWP, but PDCCH monitoring may be configured for the second BWP.

It is worth noting that although the description provided in this article may be in the context of certain radio access technologies, networks and network topologies (such as 5G (5th Generation) and NR), the concepts proposed are The solution and any variants/derivations can be applied to other types of radio access technologies, networks and network topologies (for example, Long-Term Evolution (LTE), LTE-Advanced), LTE Pro (LTE) -Advanced Pro), Internet-of-Things (IoT) and Narrow Band Internet of Things (NB-IoT), or through other types of radio access technologies, networks and network topologies (For example, Long-Term Evolution (LTE), LTE-Advanced (LTE-Advanced), LTE-Advanced Pro (LTE-Advanced Pro), Internet-of-Things (IoT), and Narrow Band Internet of Things, NB-IoT) implementation. Therefore, the scope of the present invention is not limited to the examples described herein.

Detailed examples and implementations of the claimed subject matter are disclosed herein. However, it should be understood that the disclosed embodiments and implementations are merely illustrations of the claimed subject matter that can be embodied in various forms. However, the present invention can be embodied in many different forms, and should not be construed as being limited to the exemplary embodiments and implementations set forth herein. On the contrary, these exemplary embodiments and implementations are provided to make the description of the present invention thorough and complete, and to fully convey the scope of the present invention to those having ordinary knowledge in the technical field. In the following description, well-known features and technical details may be omitted to avoid unnecessarily obscuring the presented embodiments and implementations. Overview

The embodiments according to the present invention relate to various technologies, methods, solutions and/or solutions related to power saving of NR carrier aggregation of user equipment and network devices in mobile communications. According to the present invention, multiple possible solutions can be implemented individually or jointly. That is, although these possible solutions may be described separately below, two or more of these possible solutions may be implemented in one combination or another combination.

Figure 1 shows an example network environment 100 in which various solutions and solutions according to the present invention can be implemented. Referring to part (A) of FIG. 1, the network environment 100 may be an NR communication environment involving the UE 110 and a wireless network 120 (for example, an NR mobile network). The UE 110 can be used for example but not limited to portable devices (for example, smart phones), wearable devices (for example, smart watches), vehicles or their components, roadside units (RSU) (for example, traffic signal , Street lights, roadside sensors or roadside structures) or Internet of Thing (IoT) devices (such as sensors). The wireless network 120 may pass through a first network node 122 (for example, an eNB, gNB, or a transmit/receive point (TRP)) and/or a second network node 124 (for example, an eNB, gNB, or TRP) Perform wireless communication with UE 110. In the example shown in FIG. 1, as a part of the wireless network 120, the first network node 122 may be associated with a primary cell (PCell) 126, and the second network node 124 may be associated with a secondary cell (secondary cell). , SCell) 128 is associated. For example, the PCell 126 may operate on a primary frequency, on which the UE 110 may perform an initial connection establishment procedure or initiate a connection reestablishment procedure. Alternatively, during the handover process relative to the UE 110, the PCell 126 may indicate the primary cell. In addition, SCell 128 can operate on a secondary frequency (secondary frequency), where the secondary frequency is configured to provide additional radio resources once a radio resource control (RRC) connection is established with UE 110 ( For example, one or more BWP). In the network environment 100, the UE 110 and the wireless network 120 (via the first network node 122 and/or the second network node 124) can be implemented and used for mobile communication (for example, NR mobile communication) according to the following content of the present invention ) Various programs related to power saving of NR carrier aggregation.

Under the proposed solution according to the present invention, UE 110 may be configured with at least two BWPs for SCell 128. Regarding monitoring the PDCCH on a specific BWP, one of the at least two BWPs is set or configured as a specific BWP. That is to say, the solution proposed by the present invention configures a specific BWP to not perform PDCCH monitoring on SCell 128 to allow UE 110 to dormant behavior, and the specific BWP is an active BWP for SCell 128 of UE 110, thereby shortening the BWP switching time. SCell access switching faster than LTE. Since the UE in NR can have an active BWP for the downlink at any given time (for example, monitoring control information in the PDCCH and/or receiving in the physical downlink shared channel (PDSCH) Data), so when UE 110 switches its active BWP to a specific BWP, UE 110 will stop monitoring PDCCH, thereby reducing power consumption. That is, in NR, UE 110 is not expected to receive or monitor PDSCH, PDCCH, channel state information reference signal (CSI-RS) or tracking reference signal (tracking reference signal, TRS) outside of the active BWP. ), and when the UE 110 switches to a specific BWP, since PDCCH monitoring is not configured for the specific BWP, the UE 110 will not monitor the PDCCH. Conversely, when UE 110 switches to another BWP (which is a regular BWP) as the active BWP, UE 110 will monitor the PDCCH on this BWP.

Under the proposed scheme, a field in the downlink control information (DCI) can be used to instruct the UE 110 to switch from a regular BWP to a specific BWP in at least two BWPs of the SCell 128, or from The specific BWP switches to the same or another regular BWP. In addition, under the proposed scheme, BWP switching can be executed and completed before data scheduling to avoid data interruption. In addition, under the proposed solution, in addition to triggering PDCCH monitoring for the upcoming discontinuous reception (DRX) on duration, the power saving signal can also be used as a trigger signal to trigger the BWP handover by the UE 110. For example, the trigger timing may be earlier than the DRX on duration by at least the BWP switching delay.

For example, the SCell 128 may be configured to have at least two BWPs for use by the UE 110, namely a first BWP and a second BWP. Under the proposed solution, the PCell 126 may send high-level signaling (for example, RRC signaling) to the UE 110 via the first network node 122 to configure the first BWP as a specific BWP, which is not configured for PDCCH monitoring. In other words, regarding PDCCH monitoring, the first BWP may be a specific BWP for which PDCCH monitoring is not configured, and the second BWP may be a regular BWP for which PDCCH monitoring is configured.

Referring to part (B) of FIG. 1, the PCell 126 may also send a trigger signal (for example, a power saving signal) to the UE 110 via the first network node 122 to trigger the BWP handover. In response to receiving the trigger signal, the UE 110 may switch between the first BWP and the second BWP of the at least two BWPs of the SCell 128. In the example shown in part (B) of FIG. 1, the trigger signal may be triggered by the first DRX on-duration (denoted as "OnDuration" in FIG. 1) before the UE 110 is in the active mode (for example, wake-up mode). A network node 122 sends and is received by the UE 110. In some cases, the UE 110 may receive the trigger signal with at least the BWP switching delay early enough before the start of the DRX on duration to allow enough time for the UE 110 to perform the BWP handover to change the active BWP of the UE 110 from the first Switch from one BWP to the second BWP, or switch from the second BWP to the first BWP. Moreover, the UE 110 may receive the trigger signal early enough for the UE 110 to perform the BWP handover before the data scheduling to avoid data interruption (for example, interruption of the data reception and/or data transmission of the UE 110). Illustrative embodiment

FIG. 2 shows an example communication system 200 including an example communication device 210 and an example network device 220 according to an embodiment of the present invention. Each of the communication device 210 and the network device 220 can perform various functions to implement the solutions, techniques, processes, and methods described herein according to the present invention and related to the power saving of NR carrier aggregation in mobile communications, It also includes the above scenario/scenario and the following process.

The communication device 210 may be a part of an electronic device, and the electronic device may be a UE such as a portable or mobile device, a wearable device, a wireless communication device, or a computing device. For example, the communication device 210 may be implemented in a smart phone, a smart watch, a personal digital assistant, a digital camera, or a computing device such as a tablet computer, a laptop computer, or a notebook computer. The communication device 210 may also be a part of a machine type device, which may be an IoT or NB-IoT device such as a fixed device or a stationary device, a household device, a wired communication device, or a computing device. For example, the communication device 210 may be implemented in a smart thermostat, a smart refrigerator, a smart door lock, a wireless speaker, or a home control center. Alternatively, the communication device 210 may be implemented in the form of one or more integrated-circuit (IC) chips, such as but not limited to, one or more single-core processors, one or more multi-core processors, one Or a plurality of reduced-instruction set computing (reduced-instruction set computing, RISC) processors, or one or more complex-instruction-set-computing (CISC) processors. The communication device 210 may include, for example, at least some of those components shown in FIG. 2, such as a processor 212. The communication device 210 may further include one or more other components that are not related to the proposed solution of the present invention (for example, internal power supply, display device and/or user peripheral devices), and therefore, for simplicity and brevity, the communication These components of the device 210 are not shown in FIG. 2 and are not described below.

The network device 220 may be a part of an electronic device, and the electronic device may be a network node such as a base station, a small cell, a router, or a gateway (gateway). For example, the network device 220 may be implemented in an eNodeB in an LTE, LTE-Advanced, or LTE-Advanced Pro network or in a gNB in a 5G, NR, IoT, or NB-IoT network. Alternatively, the network device 220 may be implemented in the form of one or more IC chips, such as but not limited to, one or more single-core processors, one or more multi-core processors, or one or more RISC or CISC processor. The network device 220 may include, for example, at least some of those components shown in FIG. 2, such as a processor 222. The network device 220 may further include one or more other components (for example, internal power supply, display device, and/or user peripheral devices) that are not related to the proposed solution of the present invention, and therefore, for simplicity and conciseness, the network These components of the road device 220 are not shown in FIG. 2 and are not described below.

In one aspect, each of the processor 212 and the processor 222 may be implemented in the form of one or more single-core processors, one or more multi-core processors, or one or more CISC processors. That is, even though the singular term "processor" is used herein to refer to the processor 212 and the processor 222, according to the present invention, in some embodiments, each of the processor 212 and the processor 222 may include a plurality of processes. In other embodiments, a single processor may be included. On the other hand, each of the processor 212 and the processor 222 may be implemented in the form of hardware (and optionally, firmware) having electronic components including, for example, but not limited to, one or more electronic components. Crystal, one or more diodes, one or more capacitors, one or more resistors, one or more inductors, one or more memristors and/or one or more varactors Varactors, which are configured and arranged to achieve a specific purpose according to the invention. In other words, according to various embodiments of the present invention, in at least some embodiments, each of the processor 212 and the processor 222 is specifically designed, arranged, and configured to perform a reduction device (eg, represented by the communication device 210). ) And dedicated machines for specific tasks in the power consumption of the network (for example, as represented by the network device 220).

In some embodiments, the communication device 210 may further include a transceiver 216, which is coupled to the processor 212 and capable of wirelessly sending and receiving data. In some embodiments, the communication device 210 may further include a memory 214 that is coupled to the processor 212 and can be accessed by the processor 212 and store data therein. In some embodiments, the network device 220 may further include a transceiver 226 coupled to the processor 222 and capable of wirelessly sending and receiving data. In some embodiments, the network device 220 may further include a memory 224 coupled to the processor 222 and capable of being accessed by the processor 222 and storing data therein. Therefore, the communication device 210 and the network device 220 can wirelessly communicate with each other via the transceiver 216 and the transceiver 226, respectively.

In order to help a better understanding, the following description of the operations, functions, and capabilities of each of the communication device 210 and the network device 220 is provided in the context of a mobile communication environment. In this communication environment, the communication device 210 is implemented as In a communication device or UE (for example, UE 110) or as a communication device or UE (for example, UE 110), and the network device 220 is implemented in a network node (for example, the first communication network (for example, wireless network 120)) A network node 122 or PCell 126) or as a network node (for example, the first network node 122 or PCell 126).

Under the proposed scheme according to the present invention, the processor 212 of the device 210 may receive higher-layer signaling from a wireless network (for example, the wireless network 120) via the device 220 (for example, the PCell 126) via the transceiver 216 (For example, RRC signaling), the higher layer signaling configures at least two BWPs for the SCell (for example, SCell 128). The processor 212 can also receive a trigger signal from the wireless network via the transceiver 216. In response to receiving the trigger signal, the processor 212 may switch between the first BWP and the second BWP of the at least two BWPs of the SCell 128 via the transceiver 216. In this case, PDCCH monitoring may not be configured for the first BWP, but PDCCH monitoring may be configured for the second BWP.

In some embodiments, in the switching, the processor 212 may switch before the data scheduling.

In some embodiments, in receiving the trigger signal, the processor 212 may receive the trigger signal before the start of the DRX on duration of the device 210 in the active mode. In some embodiments, the trigger signal may be received through at least the BWP switching delay of the device 210 before the start of the DRX on duration.

In some embodiments, when receiving the trigger signal, the processor 212 may receive the power saving signal that triggers the switching. For example, the processor 212 may receive a PDCCH control signal or DCI as a power saving signal.

In some embodiments, the processor 212 may also receive high-level signaling (for example, RRC signaling) from the wireless network (for example, the wireless network 120) via the device 220 (for example, the PCell 126) via the transceiver 216. The signaling (for example, SCell 128) configures at least two BWPs for the SCell.

In another proposed solution according to the present invention, the processor 212 of the device 210 may receive a trigger signal from a wireless network (for example, the wireless network 120) via the device 220 (for example, the PCell 126) via the transceiver 216. In some implementations, in the switch, the processor 212 may switch before the data scheduling. In addition, the processor 212 may switch between the first BWP and the second BWP of the at least two BWPs used in the SCell (for example, the SCell 128) via the transceiver 216 in response to receiving the trigger signal. In this case, PDCCH monitoring may not be configured for the first BWP, but PDCCH monitoring may be configured for the second BWP.

In some embodiments, in receiving the trigger signal, the processor 212 may receive the trigger signal before the start of the DRX on duration while the device 210 is in the active mode. In some embodiments, the trigger signal may be received through at least the BWP switching delay of the device 210 before the start of the DRX on duration.

In some embodiments, when receiving the trigger signal, the processor 212 may receive the power saving signal that triggers the switching. For example, the processor 212 may receive a PDCCH control signal or DCI as a power saving signal.

In some embodiments, when switching between the first BWP and the second BWP, the processor 212 may perform certain operations. For example, the processor 212 may switch from the second BWP to the first BWP. In addition, the processor 212 may enter a power saving mode. Alternatively, the processor 212 may switch from the first BWP to the second BWP and enter the active mode to monitor the PDCCH on the second BWP.

In some embodiments, the processor 212 may perform additional operations. For example, the processor 212 may receive high-level signaling (eg, RRC signaling) from the wireless network via the transceiver 216, and the high-level signaling (eg, SCell 128) configures at least two BWPs for the SCell. Illustrative process

Figure 3 shows an example process 300 according to an embodiment of the invention. According to the present invention, the process 300 may be a partial or complete exemplary implementation of the above scenario/scheme regarding power saving of NR carrier aggregation used in mobile communications. The process 300 may represent an aspect of the realization of the features of the communication device 210. Process 300 may include one or more operations, actions, or functions as shown in one or more of blocks 310 and 320. Although shown as discrete blocks, each block of the process 300 may be divided into additional blocks, combined into fewer blocks, or eliminated according to the desired implementation. In addition, the blocks of process 300 may be performed in the order shown in FIG. 3 or alternatively in a different order. The process 300 may be implemented by the communication device 210 or any suitable UE or machine type device. For illustrative purposes only and not limitation, the process 300 is described below in the context of the communication device 210. The process 300 may begin at block 310.

At 310, the process 300 may involve the processor 212 of the device 210 from a wireless network (eg, wireless network 120) via a network node (eg, the first network node 122 or the second network node 124 via the transceiver 216) ) Receive trigger signal. The process 300 can proceed from 310 to 320.

At 320, the process 300 may include the processor 212 in response to receiving the trigger signal, via the transceiver 216, switching between the first BWP and the second BWP of the at least two BWPs for the SCell (eg, SCell 128). In this case, PDCCH monitoring may not be configured for the first BWP, but PDCCH monitoring may be configured for the second BWP.

In some implementations, during the switching, the process 300 may include the processor 212 switching before the data scheduling.

In some implementations, in receiving the trigger signal, the process 300 may involve the processor 212 receiving the trigger signal before the start of the DRX on duration while the device 210 is in the active mode. In some embodiments, the trigger signal may be received through at least the BWP switching delay of the device 210 before the start of the DRX on duration.

In some embodiments, in receiving the trigger signal, the process 300 may involve the processor 212 receiving the power saving signal that triggers the switch. For example, the process 300 may involve the processor 212 receiving a PDCCH control signal or DCI used as a power saving signal.

In some embodiments, the process 300 may involve the processor 212 to perform certain operations when switching between the first BWP and the second BWP. For example, the process 300 may involve the processor 212 switching from the second BWP to the first BWP. Additionally, the process 300 may involve the processor 212 entering a power saving mode. Alternatively, the process 300 may involve the processor 212 switching from the first BWP to the second BWP and entering the active mode to monitor the PDCCH on the second BWP.

In some embodiments, the process 300 may involve the processor 212 to perform additional operations. For example, the process 300 may include the processor 212 receiving high-level signaling (eg, RRC signaling) from the wireless network via the transceiver 216, the high-level signaling (eg, SCell 128) configuring at least two BWPs for the SCell.

Figure 4 shows an example process 400 according to an embodiment of the invention. According to the present invention, the process 400 may be a partial or complete exemplary implementation of the above scenario/scheme regarding power saving for NR carrier aggregation used in mobile communications. The process 400 may represent an aspect of the implementation of the features of the communication device 210. The process 400 may include one or more operations, actions, or functions as shown in one or more of the blocks 410 and 420. Although shown as discrete blocks, each block of the process 300 may be divided into additional blocks, combined into fewer blocks, or eliminated according to the desired implementation. In addition, the blocks of process 400 may be executed in the order shown in FIG. 4 or alternatively in a different order. The process 400 may be implemented by the communication device 210 or any suitable UE or machine type device. For illustrative purposes only and not limitation, the process 400 is described below in the context of the communication device 210. The process 400 may begin at block 410.

At 410, the process 400 may involve the processor 212 of the device 210 from a wireless network (eg, wireless network 120) via a network node (eg, the first network node 122 or the second network node 124 via the transceiver 216) ) Receive high-level signaling (for example, RRC signaling), which configures at least two BWPs for SCell (for example, SCell 128), where the first BWP of the at least two BWPs is not Configure the specific BWP monitored by the PDCCH. The process 400 may proceed from 410 to 420.

At 420, the process 400 may include the processor 212 via the transceiver 216 switching between the first BWP and the second BWP of the at least two BWPs for the SCell.

In some embodiments, during the switching, the process 400 may include the processor 212 switching before the data scheduling.

In some embodiments, the process 400 may involve the processor 212 to perform certain operations when switching between the first BWP and the second BWP. For example, the process 400 may involve the processor 212 switching from the second BWP to the first BWP. Additionally, the process 400 may involve the processor 212 entering a power saving mode. Alternatively, the process 400 may involve the processor 212 switching from the first BWP to the second BWP and entering the active mode to monitor the PDCCH on the second BWP.

In some embodiments, the process 400 may involve the processor 212 to perform certain operations when switching between the first BWP and the second BWP. For example, the process 400 may involve the processor 212 receiving a trigger signal from a wireless network. In addition, the process 400 may include the processor 212 switching between the first BWP and the second BWP for the SCell in response to receiving the trigger signal. In some embodiments, when the trigger signal is received, the process 400 may include the processor 212 receiving the power saving signal for triggering the switch. For example, the process 400 may involve the processor 212 receiving a PDCCH control signal or DCI used as a power saving signal. Alternatively or additionally, in receiving the trigger signal, the process 400 may include the processor 212 receiving the trigger signal before the start of the DRX on duration of the device in the active mode. In some embodiments, the trigger signal may be received through at least the BWP switching delay of the device 210 before the start of the DRX on duration. Supplement

The subject matter described herein sometimes shows different components contained within or connected to different other components. It should be understood that the architecture described in this way is only an example, and in fact, many other architectures can be implemented to achieve the same design purpose. In a conceptual sense, any components used to achieve the same function are arranged to be effectively "associated" to achieve the desired function. Therefore, any two components combined here to achieve a specific function can be regarded as "associated with" each other to achieve the desired function, regardless of the architecture or intermediate components. Likewise, any two components associated as such can also be regarded as being "operably connected" or "operably coupled" with each other to achieve desired functions. Specific examples of operably coupleable include, but are not limited to, physically pairable and/or physically interacting components and/or wireless interaction and/or wireless interaction components and/or logical interaction and/or logical interaction components.

In addition, with regard to the use of basically any plural and/or singular terms herein, those skilled in the art can appropriately convert the plural to the singular and/or convert the singular to the plural and/or applications according to the context. For the sake of clarity, various singular/plural permutations can be clearly stated here.

In addition, those skilled in the art will understand that, generally speaking, the terms used herein, especially the terms in the scope of the appended application (for example, the subject of the scope of the appended application) are generally intended as "open" terms For example, the term "including" shall be interpreted as "including but not limited to", the term "having" shall be interpreted as "at least having", the term "including" shall be interpreted as "including but not limited to" and so on. Those skilled in the art will further understand that if it is intended to introduce an expression that introduces a specific number of the scope of patent application, such intention will be clearly stated in the scope of patent application, and if there is no such expression, it will not There is such an intention. For example, in order to help understanding, the appended claims of the present invention may include the use of the introductory phrases "at least one" and "one or more" to introduce the claims of the claims. In addition, even if a specific number of the introduced patent enumerations are explicitly listed, those skilled in the art will recognize that such enumerations should be interpreted as at least, for example, the term "two" means at least two, or two or more One. In addition, in those cases where "at least one of A, B, and C, etc." is used, it should be understood as the meaning commonly understood by those skilled in the art, for example, "having at least one of A, B, and C "Systems" shall include, but are not limited to, systems having only A, only B, only C, having A and B together, having A and C together, having B and C together, and/or A, B and C wait together. In those cases where "at least one of A, B or C, etc." is used, it should be understood as the meaning commonly understood by those skilled in the art, such as "a system having at least one of A, B or C" This will include but not limited to systems with only A, only B, with a single C, with A and B, A and C together, B and C together, and/or A, B and C together, and so on. Those skilled in the art will further understand that, in fact, any separate words and/or phrases presented in the specification, patent application or drawings, two or more alternative terms should be understood as possibly including one of the terms, the term Either or both terms in. For example, the phrase "A or B" will be understood to include the possibilities of "A" or "B" or "A and B."

Based on the foregoing, it will be understood that various embodiments of the present invention have been described herein for illustrative purposes, and various modifications can be made without departing from the scope and spirit of the present invention. Therefore, the various embodiments disclosed herein are not intended to be limiting, and their true scope and spirit are indicated by the attached patent scope.

100: network environment 110: UE 120: wireless network 122: first network node 124: second network node 126: main cell 128: auxiliary cell 200: Communication system 210: Communication device 220: network device 212, 222: Processor 214, 224: Memory 216, 226: Transceiver 300, 400: process 310, 320, 410, 420: frame

The present invention includes the accompanying drawings to provide a further understanding of the present invention, and the accompanying drawings are incorporated into the present invention and constitute a part of the present invention. The drawings illustrate the embodiments of the present invention, and together with the description serve to explain the principle of the present invention. It can be understood that the drawings are not necessarily drawn to scale, because in order to clearly illustrate the concept of the present invention, some components may be displayed out of proportion to the size in actual implementation. Figure 1 is a diagram of an example network environment in which various solutions and solutions according to the present invention can be implemented. Figure 2 is a block diagram of an example communication system according to an embodiment of the present invention. Figure 3 is a flowchart of an example process according to an embodiment of the present invention. Figure 4 is a flowchart of an example process according to an embodiment of the present invention.

100: network environment

110: UE

120: wireless network

122: first network node

124: second network node

126: main cell

128: auxiliary cell

Claims (12)

One method includes: The processor of the device implemented in the user equipment receives the trigger signal from the wireless network; and In response to receiving the trigger signal, the processor switches between the first bandwidth portion and the second bandwidth portion of the at least two bandwidth portions used in the secondary cell, Wherein, no physical downlink control channel monitoring is configured for the first bandwidth part, and Wherein, the physical downlink control channel monitoring is configured for the second bandwidth part. The method described in the scope of the patent application 1, wherein the switching includes switching before the data scheduling. According to the method described in the scope of patent application 2, wherein the receiving the trigger signal includes: receiving the trigger signal before the start of the discontinuous reception on-duration when the device is in the active mode. As described in the patent application scope 3, the trigger signal is received through the switching delay of at least the bandwidth part of the user equipment before the on-duration of discontinuous reception starts. According to the method of patent application 1, wherein the receiving the trigger signal includes: receiving a power saving signal to trigger the switching, and wherein the receiving the power saving signal includes: receiving a physical downlink control channel control signal or a downlink Road control information. The method described in the scope of the application for patent 1, also includes: The processor receives high-level signaling from the wireless network, and the high-level signaling configures the at least two bandwidth parts for the secondary cell. A device including: Transceiver, configured for wireless communication with the wireless network; and A processor, coupled to the transceiver and configured to perform the following operations: Receive a trigger signal from the wireless network through the transceiver; and In response to receiving the trigger signal, switching between the first bandwidth portion and the second bandwidth portion of the at least two bandwidth portions of the secondary cell via the transceiver, Among them, the physical downlink control channel monitoring is not configured for the first bandwidth part, Wherein, the physical downlink control channel monitoring is configured for the second bandwidth part. The device described in the scope of application 7, wherein in the switching, the processor switches before the data scheduling. According to the device described in the scope of patent application 8, when the trigger signal is received, the processor receives the trigger signal before the start of the discontinuous reception on-duration when the device is in the active mode. According to the device described in the scope of patent application 9, before the start of the discontinuous reception on-duration, the trigger signal is received through at least a partial switching delay of the bandwidth of the device. According to the device described in the scope of the patent application 7, when the trigger signal is received, the processor receives a power saving signal that triggers the switching, and wherein the power saving signal includes a control signal or downlink control information. According to the device described in the scope of patent application 7, the processor is further configured to perform the following operations: The high-level signaling is received from the wireless network via the transceiver, and the high-level signaling configures the at least two bandwidth parts for the secondary cell.

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